USI 3509 Mercado HR40 Snack Vending Machine – 5-Wide Dual-Spiral, MDB, Refurbished

USI 3509 Mercado HR40 (5-Wide Dual-Spiral, Guaranteed Vend)

The USI 3509 Mercado HR40 is a full-size, five-wide commercial snack merchandiser built on the USI (U-Select-It) Mercato 5000 platform. It stands 72 inches tall by 38 inches wide by 34 inches deep, weighs roughly 685 pounds, and holds between 350 and 400 packaged products across six adjustable shelves — a footprint sized for serious, unattended snack operations rather than countertop side income.

Configured with dual-helix spirals and one dedicated candy shelf, this HR40 offers up to 30-40 individual selections. The tray layout accepts a wide mix of packaging — bags of chips and popcorn, candy and chocolate bars, gum and mints, cookies, crackers, and pastries — so one machine can carry a full snack menu at a single stop. Because it fills 350 to 400 facings and empties out at a far higher gross than a mechanical countertop unit, an operator spends the same drive time servicing many more sales per visit.

USI 3509 Mercado HR40 Specifications

Key Features

The defining feature of this machine is the iVend guaranteed-vend system: an infrared sensor across the delivery bin confirms every product actually drops. If an item hangs on the spiral or fails to fall, the machine re-vends or refunds — which cuts refund complaints, protects your reputation at the location, and lets the unit safely accept credit and mobile payments.

A clear LED display shows the selection number and price so customers confirm their choice before buying, and a wide, hood-style retrieval door protects product from tampering while still being easy to reach into. The DEX port pulls sales and inventory data for route planning, and the standard 115-volt, 1.2-amp draw means it plugs into any ordinary wall outlet.

About USI (U-Select-It) and The Wittern Group

USI (U-Select-It) is a US vending-equipment brand of The Wittern Group, headquartered in Clive, Iowa, and one of the last major vending machine manufacturers still building in the United States. Wittern has produced snack, food, and beverage merchandisers for decades, and the Mercato 5000 line that the 3509 belongs to is one of its most widely deployed 5-wide snack platforms. You can review the manufacturer’s Mercato 5000 line on the official U-Select-It ambient snack page.

Where This Machine Earns

A 5-wide snack merchandiser of this capacity fits medium-to-high-traffic sites where foot traffic justifies keeping 40 selections stocked: manufacturing floors and warehouses, office buildings, apartment and dorm common areas, auto shops, fitness centers, hospitals and clinics, hotels, and busy break rooms. Because it typically holds 350 to 400 items, it needs fewer service visits than a small machine to stay full — the reason experienced operators favor full-size equipment. Actual sales depend on your location, product mix, and pricing; for help choosing sites, our Location Placement and Vending Startup Program can guide first-time operators.

Condition & What’s Included

This USI 3509 Mercado HR40 is refurbished: inspected, cleaned, tested for guaranteed vend, and prepared for service before it ships. It arrives with the MDB board, coin mechanism, and bill validator installed and functional, and is credit-card ready if you want to add a card reader. Refurbished machines carry Finn Vending Sales’ 1-year limited parts-and-service warranty, including replacement parts, labor, and remote technical support for US customers. Buying refurbished is the practical way to get full-size commercial capacity at a fraction of new-machine cost.

Why Buy From Finn Vending Sales

We ship free across the continental United States via curbside freight from our Hanover, Minnesota facility. Orders are processed, tested, and prepared for shipment within 1-2 business days after payment confirmation, with typical delivery in 3-7 business days. Every purchase is backed by a 30-day return window with free return shipping on approved returns, plus optional on-site installation and startup support. Prefer to talk it through first? Use secure checkout on this page and our team will follow up. Not sure this model fits your route? Compare it against our full range of snack vending machines or read the Buyers Guide.

Compare related machines

Buyers weighing this machine also look at these Finn Vending Sales listings:

• USI Alpine Combi 3000 Frozen Food Machine — $7,051
• USI Mercato 5000 Snack Machine — $2,272
• USI Mercato 4000 Snack Machine — $3,779
• USI Mercato 3000 Snack Machine — $4,099

Frequently Asked Questions

How many selections and how much does the USI 3509 Mercado HR40 hold?
It offers 30 to 40 selections across 6 shelves and holds roughly 350 to 400 packaged items, thanks to its dual-spiral, 5-wide layout.

Does it take credit cards, or can I add a card reader?
Yes. The machine runs on an MDB board and is credit-card ready, so a Nayax or comparable MDB card reader can be added for tap, chip, and mobile payments alongside the coin mechanism and $1/$5 bill validator.

What power does it require?
It runs on standard US power — 115 VAC / 60 Hz at about 1.2 amps — so it plugs into an ordinary grounded wall outlet with no special wiring.

Will it fit through a standard doorway?
At 38 inches wide it clears most 36-inch commercial doorways; at 72 inches tall and about 685 pounds, plan on a dolly or pallet jack and a helper for placement.

Is this machine new or refurbished?
This unit is refurbished — inspected, cleaned, and tested for guaranteed vend before shipping — and covered by a 1-year limited parts-and-service warranty.

What is “guaranteed vend”?
The iVend infrared sensor confirms each product drops into the bin; if an item fails to vend, the machine automatically re-vends or refunds, so customers are never charged for a product they didn’t receive.

How is it delivered?
Free curbside freight across the continental US, dispatched 1-2 business days after payment, typically arriving in 3-7 business days.